Dream Card Blaster Dark Vengence

[ACT]:(VC) Limit Break 4 (This ability is active if you have four or more damage.) [Counter Blast (2)] If you have a unit named "Blaster Dark" in your soul, you may pay the cost. If you do, this unit gets [Power]+5000/[Critical]+1 until end of turn. This effect cannot be used for the rest of turn.

[AUTO]:(VC)[Counter Blast (2)] When this unit is placed on (VC), you may pay the cost. If you do, choose one of your opponent's rear-guards, and retire it.